1-1 Understanding Points, Lines, and Planes

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1-1

Exercises

California Standards 1.0, 6SDAP1.1 KEYWORD: MG7 1-1 KEYWORD: MG7 Parent

GUIDED PRACTICE Vocabulary Apply the vocabulary from this lesson to answer each question. 1. Give an example from your classroom of three collinear points. 2. Make use of the fact that endpoint is a compound of end and point and name . the endpoint of ST SEE EXAMPLE

1

p. 6

Use the figure to name each of the following. 3. five points

4. two lines

5. two planes

6. point on BD

SEE EXAMPLE

2

p. 7

Draw and label each of the following. 7. a segment with endpoints M and N 8. a ray with endpoint F that passes through G

SEE EXAMPLE

3

p. 7

Use the figure to name each of the following.

9. a line that contains A and C

10. a plane that contains A, D, and C SEE EXAMPLE 4 p. 8

Sketch a figure that shows each of the following. 11. three coplanar lines that intersect in a common point 12. two lines that do not intersect

PRACTICE AND PROBLEM SOLVING Independent Practice For See Exercises Example

13–15 16–17 18–19 20–21

1 2 3 4

Extra Practice

Use the figure to name each of the following. 13. three collinear points

14. four coplanar points

15. a plane containing E

Draw and label each of the following. 16. a line containing X and Y

Skills Practice p. S4 Application Practice p. S28

17. a pair of opposite rays that both contain R Use the figure to name each of the following.

“

18. two points and a line that lie in plane T

19. two planes that contain

Sketch a figure that shows each of the following. 20. a line that intersects two nonintersecting planes

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21. three coplanar lines that intersect in three different points 1- 1 Understanding Points, Lines, and Planes

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